Exception ignored in: 'netfilterqueue.global_callback'

[jieyoujun]

from netfilterqueue import NetfilterQueue from scapy.all import *

def print_and_accept(pkt): print(pkt) pl = IP(pkt.get_payload()) print(pl.show()) pl[IP].dst = "172.17.0.3" del pl[IP].len, pl[IP].chksum, pl[TCP].chksum print(">>>payload: ",str(pl)) pkt.set_payload(str(pl)) hw = pkt.get_hw() if hw: print(":".join("{:02x}".format(c) for c in hw[0:6])) pkt.accept()

nfqueue = NetfilterQueue() nfqueue.bind(0, print_and_accept) try: nfqueue.run() except KeyboardInterrupt: print('')

nfqueue.unbind()

following is the output:

[ IP ]

version = 4 ihl = 5 tos = 0x0 len = 52 id = 43486 flags = DF frag = 0 ttl = 127 proto = tcp chksum = 0x2028 src = 192.168.197.1 dst = 172.17.0.2 \options \

[ TCP ]

 sport     = 10732
 dport     = http
 seq       = 3132586654
 ack       = 0
 dataofs   = 8
 reserved  = 0
 flags     = S
 window    = 64240
 chksum    = 0xe2cf
 urgptr    = 0
 options   = [('MSS', 1460), ('NOP', None), ('WScale', 8), ('NOP', None), ('NOP', None), ('SAckOK', b'')]

None

payload: b'E\x00\x004\xa9\xde@\x00\x7f\x06 (\xc0\xa8\xc5\x01\xac\x11\x00\x03)\xec\x00P\xba\xb7z\x9e\x00\x00\x00\x00\x80\x02\xfa\xf0\xe2\xcf\x00\x00\x02\x04\x05\xb4\x01\x03\x03\x08\x01\x01\x04\x02' Exception ignored in: 'netfilterqueue.global_callback' Traceback (most recent call last): File "nfq3.py", line 10, in print_and_accept pkt.set_payload(str(pl)) TypeError: Argument 'payload' has incorrect type (expected bytes, got str)

[strictlymike]

Duplicates #31